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Status published
Medium
CVE-2021-3786
A potential vulnerability in the SMI callback function used in...
Vulnerability Description
A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Lenovo thanks Itai Liba and Assaf Carlsbad from SentinelOne for reporting these issues.
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Affected Vendor
Lenovo
View all reports →Affected Software
Notebook and ThinkPad BIOS
Vulnerable Versions:
various
Timeline
Official Publish:
November 12th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H